5．选A。while引导并列句，表转折。
4．选D。what引导宾语从句，what在宾语从句做宾语。
3．选B。从in time知，remind 的内容为时间，所以选when。
2．选D。although引导状语从句，as引导状语从句时要用倒装语序。
1． 选D。what引导表语从句，what在从句中做宾语。
47. I grew up in Africa, _____ at least I should say that I spend much of the first ten years of my life there.
A. and B. or C. so D. but
解析：
46. _____ makes this shop different is that it offers more personal services.
A. What B. Who C. Whatever D. Whoever
(辽宁卷)
45. I was told that there were about 50 foreign students _____ Chinese in the school, most ______ were from Germany.
A. study; of whom B. study; of them
C. studying; of them D. studying; of whom
44. A warm thought suddenly came to me ___ I might use the pocket money to buy some flowers for my mother’s birthday.
A. if B. when C. that D. which
43.- Why didn’t you tell him about the meeting?
- He rushed out of the room ______ I could say a word.
A. before B. until C. when D. after
( 安徽卷)